Will is in an experiment in which he is asked to raise his hand every time he thinks he hears a tone. at a particular intensity level, will accurately detects the tone 50% of the time. this is wills

What is the length x of the side of the triangle below? (hint: use the cosine function)

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

The energy produced as a result of this flow of electrons from atom to atom is called